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3.2 Transportation and Traffic g) The Project would not cause substantial damage or wear of public roadways by increased movement of heavy vehicles. The degradation of roadway pavement occurs when the amount of heavy truck traffic per 'rki; day exceeds the structural design capacity of the roadway.Because the Project would not 1 increase either the daily maximum or annual maximum production levels, the number of heavy trucks generated by the Quarry per day would not change, even though the hourly distribution of those heavy trucks could change. That is,during periods of night work, nighttime truck traffic would increase, while daytime traffic would likely decrease. Therefore the Project would not have an effect on roadway pavement condition. 3.2.4 Discussion of Impacts and Mitigation Measures ` FJ Approach to Analysis A transportation analysis was conducted to determine the extent to which the proposed extension of operating hours to include nighttime activities at the Project site would adversely affect traffic flow conditions on area roadways,on the basis of estimated hourly trip generation during the nighttime hours of 9:00 PM to 5:00 AM,and the evaluation of level of service conditions with t and without the Project. Impacts and Mitigation Measures a) Conflict with an applicable plan,ordinance or policy establishing measures of effectiveness for the performance of the circulation system,taking into account all modes of transportation including mass transit and non-motorized travel and relevant components of the circulation system,including but not limited to intersections,streets, highways and freeways,pedestrian and bicycle paths,and mass transit? b) Conflict with an applicable congestion management program,including,but not limited to level of service standards and travel,demand measures,or other standards established by the county congestion management agency for designated roads or rl highways? Impact 3.2.1: The Project would increase traffic volumes on area roadways.Less than I Significant. As presented in Chapter 2.0,Project Description,the Project would extend existing operating hours to include the period between 9:00 PM and 5:00 AM for a maximum of 125 nights per year. By implementing extended hours,the Project could provide asphalt paving materials for construction projects(e.g., Caltrans projects)that contain specific requirements that limit work to nighttime hours. As stated,the objective of theanalysis is to identify and evaluate how extending the hours of operations at the Facility and Project-generated traffic during the nighttime hours would affect the surrounding transportation network. I � v Munn&Perkins Quarry Excavation Permit 3.2-7 ESA 1211086 Draft EIR April 2011 _-